What you decide to say when you are dealing with troubling times in your life is up to you. You have the choice of speaking the Word of God or speaking the reality of your situation. The truth of the matter is that the reality of your situation has to submit to the reality that is God.
Hebrews 10:23 teaches us to hold on to our profession of faith without wavering. We have to have professed it (said it out of our own mouth) and we have to hold on to it without wavering. That means that we can lose it! Anytime the Lord tells you to hold on to something, you have to pay close attention to what you have and intentionally decide that you are not going to let go of it.
So, no matter what you see or what you feel, hold fast to the Word of God and allow that Word to change the troubling times of your situations.